Top definition
A Boop Monster is formed when a Poop Monster gets booped. This transformation is very rare. The most famous Boop Monster is a young girl who goes by the name Tails. This Boop Monster has done things that are unspeakable even from the darkest of minds.
The Poop Monster was booped and became a Boop Monster
by Dilusion November 06, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug